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new batches for AMU-ENTRANCE for classes 6th and 9th

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How to find angles in circle class 9 | Circles Class 9 MCQ | Circles Class 9 Extra Questions

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Prove that : tan theta / 1- cot theta + cot theta / 1- tan theta = 1+ sec theta cosec theta

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Class-10, Chapter-10 Circles, Exercise - 10.2, Q. No-9 In Fig. 10.13, XY and X′Y′ are two parallel tangents to a circle with centre O and another tangent AB with point of contact C intersecting XY at A and X′Y′ at B. Prove that ∠ AOB = 90°.

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Class -9th, Surface Areas and Volumes, Exercise- 11.1, ALL QUESTIONS

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A corn cob shaped somewhat like a cone has the radius of its broadest end as 2.1 cm and length (height) as 20 cm. If each 1 cm2 of the surface of the cob carries an average of four grains, find how many grains you would find on the entire cob.

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If a + b + c = 0 then find the value of a2/bc + b2 /ca + c2 / ab

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